What is the complementary color of red?

Green.

The complementary color of red is green. This relationship is based on the principles of color theory, which explores how colors interact and how they can be combined to create visually appealing and harmonious effects. Complementary colors are pairs of colors that are opposite each other on the color wheel. When placed next to each other, they create a strong contrast and can make each other appear more vibrant.

The concept of complementary colors stems from the way our eyes perceive color. The human visual system is particularly responsive to certain combinations of colors due to the way photoreceptor cells in the retina, called cones, detect and process light. There are three types of cones, each sensitive to different wavelengths of light corresponding to red, green, and blue. When we see red, the cones sensitive to red light are stimulated. Viewing its complementary color, green, activates different cones, creating a balanced visual experience.

Artists, designers, and decorators often use complementary colors to create striking visual contrasts and to draw attention to specific elements within a composition. For example, in painting and design, placing red and green together can produce a dynamic and eye-catching effect. This technique is also employed in various forms of media and advertising to capture the viewer’s attention.

In addition to aesthetics, the concept of complementary colors is also used in color correction and image editing. For instance, if a photograph has a red color cast, adding green can help neutralize the excess red and restore a more balanced and natural appearance.

In summary, green is the complementary color of red, according to color theory. This pairing creates a strong contrast that enhances visual interest and is widely used in art, design, and color correction to achieve balanced and dynamic compositions.